Lubricator pump



C. F. JENSEN .QLUBRICATOR PUMP Sept. 8, 1925. 1,552,704

Filed Dec. 2, 1924 I6 25 INVENTOR.

30 z [5 CARL F JENSEN 33 BY y 47 g w. 3 Mfr k ATTORNEY s r. s, tees.

r. rsnsme, or BBIDsEPQBT, connnc'rrcu'r.

mar/m lls nunsxceron some.

Application nee lflecemhcr 2, me. Serial no. mess plunger beingoperetabl'e by means of a, shaft connected to it end slidably urrangedin a, longitudinal opening through thefcylinder 20. A handle 25 upon theshaft 24 is for actuating the piston.

To 053 whom it may concern:

Be it known that CARL F. JENSEN, a citizen or" the United Sitetes, andresidentcf Bridgeport, in the county or" Fen-field and Stste ofConnecticntihes; invented certain new and useful Improvements inLubricator Pumps, of which the following isa. specification. Thisvinvention relates to a, luhrica-tor pump and the objectof the inventionis to provide a simple and improved selective lnbricator pump hevingmeans for measuring s shot of lubricant and for forcing said shot to oneof a plurality of beerc ings or the like to be lubricated.

I With the above object in View, as well as others which will appear asthe specification proceeds, the invention comprises the construction,arrangement and combination of ports as now to be fully described and ashereinafter to be specifically claimed, it being understood that thedisclosure herein is merely illustrative ofprinciple and meant in no wayin a limiting sense, changes in details of construction and arrangementof being permissible so long as within the spirit of the invention andthe scope of the appended claims.

the accompsnying drawing forming a terminutes at its lower end in e srin v ews-receiving chamber 25 of s11 ht y renter dlameter than themeasuring 0 ammeasurmg chamber to receive a spring valve 28 held to.said seat 27 as by. means of the coil spring 29 the lower end of whichis supported in-any convenient manner, as by the washer 30 secured atthe lower end of the chamber 25, the washer 30 as disclosed resting upona portion-jot the base'of the well or cavity 15.

The spring valve 28 has arranged through it preferably at its center,and a. ball valve 32 within the measuring chamber normally closes saidopening 31. l. The chamber 25 has an opening through its. bottom, theopening asndisclosed being through the washer 30 and beingdesignated 33in Fig. 2, and said chamber 25 has a port 3 ladjacent and within theconfines of the thickened portion or web 16 and at the 38 or" thisspecification, normal elevation of the s ring valve 28, 1 is a topplan-view of n lubncstor adapted to communicate wit 1 any one of the ouwhich the features of the invention ports 17 in said thickened portionor web er which-may be selected. As shown in Fig; 2,1 the port 34: iscompletely covered by the 35 1- spring valve 28 when said spring valveis in A i 3 its normal .position,'snd the spring valve-is Fig. 2 ofdiameter to closely fit and nicely slide in respect to the drawing, it)represents a lubricant reservoir with cover 11 removshly attached asby-screws l2, and 18 denotes e filling opening with threaded and ported1% or ordinary construction.

The lower portion of the reservoir has a the chamber 25.

The position of the axially rotatable cylinder in the cover 11 isinsured by means of and engaging the lower face of the cover 00-operating with rotating lever 36 upon the well or cavity 15 and adjacentthe cavity portion of the'cylinder extending beyond the there isethickened p riion or web 16 'hsvcover. The rotating lever is keyed tothe in a plurality of ports 17 leading from the {cylinder as at 37 andincludes a cavity 38 well or cavity 15' to threaded openings 18 having acoil spring 39 and a. ball 40 adapted adapted to receive piping 19leading to bearto ride over the top of the cover or to enter lugs or thelike. any one of a series of depressions 41 thereh'umeral 20 representsan axially rotatain. When the ball i flride s into a depression hiecylinder mounted in the cover 11 as at .l-l, the cylinder pos1t10n 1sfixed against ac- 21 and having its lower end extending into cldentalrotatlon. At this time the port 34 the well or cavity 15. A lowerportion of aligns with a port 17. A nut l2huv1ng an the cylinder 20includes a measuring chanr opening+l3 receiving the shaft 24. hasthreads in which a piston or plunger 23 1s 44: engaging threads 45 uponthe upper end adapted to be rcciprocatablc, the piston or an opening Themeasuringchamber 22 of the cylinder r to provide a, seat 27 at the baseof the i an, annular shoulder 35 upon said cylinder of the cylinder,above the rotating lever.

Clearly, turning the nut 43 downinsures of thecylin er 20 and leadingfrom the reservoir to the opening through the washer 30 is provided. Atone of its positions, the

rt 34 communicates with this channel. numeral 47 re resents a drain plugat the base of the wel or cavity 15.

The manner in which the lubricator pump functions is obvious. Supposingthat the reservoir contains lubricant and that the pis ton or plunger isat its' lowest elevation, raising of the piston or plunger to theposition of Fig. 2 draws or sucks lubricant into the measuring chamber,the ball valve being lifted a ainst gravity from the spring valve. Now wen the piston or plunger has been elevated and the cylinder 20 has beenrotated in the manner set forth to cause the port 34 to align with aport 17 and the piston is then depres ed, the first action is for thelubricant under pressure in the measuring chamber to depress the springvalve 28 until theport 34 is uncovered. Further depression of the pistonforces the lubricant out through the port 34 and a selected port 17 toa'bearing or the like. As soon as the pressure upon the lubricant inthemeasuring chamber is sufficiently reduced, the coil spring 29 acts tocause the spring valve to cover the port 34, the shoulder 27 serving asa stop limiting the upward movement of the spring'valve, The cylinder9.0 can now be rotated to align the port: 3% with a different ort 17,and upon repeating the operations inst described, a diir'crent bearingcan he ubricated.

The spring valve 28 is constructed to pre clude the passage of lubricantfrom the reservoir to the measuring chamber and vice versa, exceptthrough the opening having the ball valve, and, clearly, this openingonly allows the flow of lubricant due to pressure change from thereservoir to the measuring chamber. When the pressure in the measuringchamber isgreater, the ball valve is.

tightly seated. Should itbe desired to return v lubricant from themeasuring chamber to the reservoiiy the port 34 could be positioned toalign. with the channel 46. \Vith this port so located, depression ofthe piston will force the lubricant out of the measuring chamber intothe reservoir.

Attention is called to the fact that at the time of the suction strokeof the piston or plunger, the coil spring is bu lding the s ring valve28 in position to cut of a port 1 aligning with the port 34 front boththe chamber beneath the spring valve and the chamber above it. Thespring vplve is of such dimensions that when seated against the stop 27it closes the port 34 oil from the chamber. beneath the spring valve,and said lower chamber and port 34 are, therefore, never incommunication, while the port 34 is in communication with the measuringchamher only when there is sufiicient pressure in said chamberto depressthe spring valve to uncover said port 34. At this time the port/ 34becomes an outlet leading from the mess uring chamber. When a particularrt- 17 has been selected to be aligned with t e rt- 34 and the cylinder20 has been rotate to ali said ports, en agementof the ball 40 in a defpression 41 the port 34 and a port 17 against the possibility ofaccidental displacement from aligning position.

Upon each elevation of the iston or plunger the measurin chamber islied, and

upon depression the ull load may be forced to a selected bearing or thelike.

Havin" what I if im as new and desire to Letters Patent is:

1. A lubricator pump 'com rising an axially rotatable cylinder, a welfor lubricant, the lower portion of said cylinder being situated in saidwell, saidcylinder havin a measuring chamber and a spring-vafvereceivingchamber and there being commu nication between saidwell and saidspringvalve-receiving chamber, a spring valve within said last mentionedchamber and bethus fully described the invention, secure by neath themeasurin' chamber, there being;a

port in the wall of t e cylinder adacentsaid spring valve, meansnormally ho ding said spring valve to but. off said port from bothchamliers, a check valve upon said sprin valve, a lubricant displacingdevice in sai measuring chamber,- connections having ports communicatingwith bearings to ,be

. lubricated and adapted to cominunicatewith the port in said cylinder,and means for rotating said cylinder to align its port with the port ofa selectedconnection.

2. A lubricator pump comprising a lubricant reservoir having a well atits lower end,

an axially rotatable cylinder having its lowerrnost portion situated insaid well, said cylinder having a measuring chamber and a spring-vale-receiving chamber and there be- 9 ing a connecting channel betweensaid reservoir and said spiringWalVe-receiVing cham bar, a spring valvewithin said last men t oned chamber and beneath the measuring chamber,there being a port in the wall of the cylinder adjacent said springvalve,

aid spring valve to means normally holding s cut off said port l: valveupon said spring ii chambers, a ball within said meiasuri n chamber, aiston in said measnr;

reciprocating the ports oommumsaid-cylinder, and means for rotating seiacylinder to align its port with the ort of a is given a su ctisn stroke111 the measuring W chamber lnbncant 1s dx=awn from the reservolr intoseuj. maasurmg chamber, and when sald'pxsten as given a pressure stroke,seld selected connectlon, whereby when t e pistonlubricated and- 8adapted to communicate with 'the port in spring, valve is 'depd to.uncover port of said eylin cats with any one der adapted to communibfsaid connections.

.* The combination as specified in claim 1,

wherein means is provided for locking the 'eylinder againstaccidentalfiisplaeement in any one of the operative positions to whichit may hm e been rotated.-

Si ned at Brid Fan day 'o'f November,

geport, in the. ebunty of rfield, and State of Connecticut, this 26thCARL F. JENSEN

